Gluing-machine.



No. 741,135. PATENTED OCT. 13, 1903 I J. A. 'HRUBEGKY, A

GLUING MACHINE.

APPLICATION FILED JULY 28, 1902.

N0 MODEL. 2 SHEETS-SHEET 1..

Wfi EEE- LIP/E1111]? Juseplq A-Hyuhscky {5% M -Y' flaw 7- Fatented October 13, 1903.

PATENT Unmet).

Josnn'n A. I-IRUBECKY, on NEENAH, WISCONSIN.

GLUlNG-MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 741,135, dated October 13, 1963. Application filed July 28,1902- Serial No. 117,269. (No model.)

To (LZZ whom, it natty concern:

Be it known that I, JOSEPH A. HRUBEOKY, a citizen of the United States, residing at Neenah,in the county ofWinnebago and State of Wisconsin, haveinvented a new and useful Improvement in Gluing-Machines, of which the following is a specification.

My invention relates to machines for applying melted glue to the edges of pieces of wood orother material and it consists of a narrow glue-applying pad of the full length of the piece to be glued, which is arranged to be raised from the glue and applied to the edge of the desired piece as the operator pre-' sents said piece, and is particularly adapted for applying glue to the edges of pieces of wood of which pail, bucket, and tub bottoms and keg and barrel headings are made, but may be used for gluing together longer pieces and for other purposes; and its object is to apply the melted glue in a rapid manner and with substantially no waste of glue, the glue being applied only to a narrow strip along the middle of the edge of the piece to be glued,

.whereby only enough glue is applied to fully cover the width of said edge and not over the entire width of the edge, asis the case when a brush or roll is used for applying the glue, and the surplus glue is pressed out from between the edges of the two pieces being glued together and resulting in a waste of glue, the pads for applying the glue being made of various widths suited to the thickness of the material to be glued. For instance, when gluing together two pieces for a pail-bottom one-half inch thick by ten inches long the tool should be for applying glue approximately one-fourth of an inch wide and a little over (for allowing for slight variations in the length of the bottom and also in the position in which the tool and bottom piece meet each other in applying the glue) ten inches long. If two pieces of tub-bottoms or barrel-heading three-fourths inch thick by twenty-two inches long are to be glued, the tool should be three-eighths to seven-sixteenths of an inch wide and about twentythree inches long, and if two pieces of plank for a cisternbottom or any other pupose two inches thick and eight feet long the tool should be from one to one and one-fourth inches wide and eight feet and one or two inches long, the mechanism for effecting this saving of labor and material being illustrated in the accompanying drawings, in which- Figure 1 is a top view of a hot-water receptacle, upon the cover or lid of which is arranged the mechanism for receiving the piece to which glue is to be applied and for applying the glue thereto. Fig. 2 is a side elevation of said receptacle and its glue-applying mechanism. Fig. 3 is an end elevation of Fig. 2. Fig. 4. isa transverse section of the hot-water receptacle and its mechanism at the left of the line a a of Figs. 1 and 2. Fig. 5 is a plan of the hot-water recep tacle with its lid removed and showing a glue-kettle arranged therein. Fig. 6 is a side elevation of a glue-applying pad and showing the fingers of the arms in which the pad is held when in use. Figs. 7 and 8 are end views of the glue-apply'ing-pad holder at difierent points in its length. Fig. 9 is an end View of one form or width of pad detachably secured in its holder. Fig. 10 is an end view of a narrow form of pad in its felt-retaining case and said case being detachably secured between the fingers of one of the arms of the glue-applying mechanism. Fig. 11 is a longitudinal side view of thelefthand end of a glue-applying pad similar to the pad shown in Fig. 6 and showing the manner of its formation, one of the hooks, and the catch by which it can be detachably secured in the holder, (shown in Figs. 7 and 8.) Fig. 12 shows an end and side view of a cylindrical nut which I use for adjusting the work-holding fingers, the end view showing an eccentrically-arranged screw-hole. Fig. 13 shows a modification in the mechanism from that shown in Figs. 1 and 4 for-efiecting the simultaneous oscillation of the two parallelly arranged shafts shown therein. Figs. 1 to 6, inclusive, and Fig. 13 are upon the same scale and the remaining figures upon a larger scale.

Similar numerals and letters indicate like parts in the several views.

1 indicates the outer or hot-water receptacle. If it is to be stationary and the material to be glued brought to it, hot water can be supplied by means of a pipe supplied with steam; but if it is to be moved from place to place one or more oil, gas, or other burners its case is secured with screws 30.

can be arranged under the receptacle in a usual and well-known manner for heating the water contained in the receptacle. If to be stationary, it can be made of cast metal; but if movable it is to be made, preferably, of a suitable sheet metal and may, if desired, be supported at a convenient height upon legs 2, suitably braced and connected at the ends of the receptacle with girths 3, the legs .being supplied with truck -wheels 4. The legs when used upon the rear side are extended up and formed into hinge members 5. Handles h are provided for the convenient moving of the receptacle.

The cover or lid 6 is provided with cars which serve as companion hinge members, whereby when the lid is required to be removed it can be turned back upon its hinges and be secured in a convenient manner for access to the interior of said receptacle. The lid is also provided with an aperture 6*, through which the glue is raised and applied to the pieces to be glued. The water in the receptacle can be removed when desired by means of the pipe 8, having a cock 9. Inside of this receptacle a short distance below its upper edge a cover 10 is arranged, it having an opening through which the glue-kettle 11 is suspended, the kettle having a border 12 upon its sides by which it is supported. It is supplied with a bail 13 for lifting it out and carryingit around, and when in useis to be supplied with melted glue of the proper consistency. Mounted upon thelid are shafts 14 and 15, the former being supported for oscillation in journal-supports 16 and 17 and the latter in the supports 17. Upon the shaft 14 gear-segments 18 are secured and upon the shaft gear-segments 19, both being secured upon their shafts with set-screws 20. The teeth of the segments being engaged, the oscillation of one shaft oscillates the other also.

It may be noted that as a substitute for causing the two shafts to oscillate simultane ously instead of the gear-segments as shown in Fig. 4 the arrangement shown in Fig. 13 and consisting of crank-arms b and 0, connected together with a link d, may be used. Secured to each extension of the gear-segments l9 forward of the shaft 15 with screws 21 and 22 is a finger 23, which extends forward and reaches partly over the aperture 6. The purpose of these fingers is to receive the edge of the piece to which glue is to be applied and present it' to the glue-applying pad, and at their outer or free ends they may be provided with fine teeth or spurs for engaging said piece, as is shown in Fig. 4. Secured to each segment 18 with screws 24 is a curved arm 25, and secured to each of the latter arms with screws 26 and 27 is an angular curved glue-pad-holding arm 28, having fingers 29, between which the gluing-pad in The pad or glue-applying tool consists, if the glue is to be applied to only a narrow strip of approximately one-quarter of an inch in width along the length of the edge of the piece to be glued, of a strip of soft felt-like fabric or a similar material that is adapted to deliver glue from itself to the piece to be glued, as 31, a strip of rubber of about one-half the thickness of thepiece to be glued being adapted for it, said strip being ofasuitable thickness,length, and breadth for the particular work in hand. It is to be clamped between the sides of the doubled sheet-metal strip 32, as shown in Fig. 10; but if the glue is required to be applied to a wider surface the pad may be formed, as shown in Figs. 9 and 11, of a metallic strip 33 of a suitable width for producing a pad of the desired width of face, the strip having secured to it with solder or otherwise a plurality of hooks 34 and a catch 35. The strip is then to be covered with the felt-like or rubber covering by wrapping it around the strip 33 and securing its meeting edges by sewing its edges together, preferably upon the under side of the pad, leaving the several books and catch exposed.

A pad-case holder consisting of a doubled sheet-metal strip 36, as shown in Figs. 7 and 8, is formed by doubling it, and at each point where it is to be secured between the fingers 29 with set-screws a metallic bridge-piece 37 is soldered across from one side to the other, as shown in Fig. 8, for the purpose of stiffeningthe holder at the point where said set-screws engage it, and at a plurality of points, according to the length of the holder, pins 38 and 39 are inserted, they extending across the holder from side to side, as shown in Fig. 7. These pins 38should be arranged at a distance apart corresponding with the distance apart of the hooks 34, and the pin 39 should be at such a distance from the nearest pin 38 as to permit the catch to be sprung over said pin, and thereby secure the pad within the holder. The pad requires to be held in the holder 36 principally against the adhesion of the glue between the pad and piece being glued. The upper face of the pad should be parallel with the lower edge of the piece to be glued as it rests upon the ends of the fingers 23, and the arms 28 and said fingers should be adjusted to fulfil this requirement. For adjusting the outer ends of said fingers vertically the segments 19 are extended forward of the shaft 15, and bosses 44,

formed thereon, in which cylindrical nuts 45, each having a square end and a screw hole 46 eccentrically arranged, are secured with set-screws 47. The screw-holes 46 receive the screws 22. By turning the nut partially around in the boss the end of the finger secured in its nut can be raised or lowered. For adjusting the position of the pad-holding fingers 29 the arms 28 are pivoted to the arms 25 upon the screws 27, the rear end of the arms 28 being slotted and secured to the arms 25 with thumb-screws 26.

40 indicates guide-rests having their front or working face vertical and arranged slightly over the aperture 6 These rests should be two in number, and if both long and short pieces are to be glued three or more may be required. They are made adjustable in position toward and from the aperture by having their feet slotted, they being secured to the lid with screws A slot 41 is formed through the face of the rests and extends upward about one-half of their height, through which slot in two of the rests the fingers 23 are oscillated. By placing the piece 43, to which glue is to be applied, against said rests and pressing down slightly said piece is carried down, and by the action of the gear-segments, arms 25 and 28 the gluing-pad is raised from the glue in the kettle 11 and glue applied to the lower edge of the piece 43.

An important feature of this invention is in applying glue only along a narrow strip in the middle of the edge of one of the two pieces to be glued together, as is shown in Fig. 4, the glue upon said narrow strip when the two pieces are placed together and rubbed endwise slightly, as is customary in gluing up pail and barrel headings, being spread out nearly or quite the full width of said edges, but without leaving any surplus glue upon the sides of the heading, as will necessarily be the case when a brush or wheel is used, said method of applying glue only along a narrow central strip of about one-half the width of the edge of the piece to be glued accomplishing a saving of nearly one-half of the glue that would be used if applied with a brush or wheel over the entire edge surface of said pieces.

It will be evident to the workman that the gluing-pad as described is adapted for being applied when detached from all mechanism and held in the hand of the operator directly to the edge of the piece to be glued after having glue applied by dipping it into the glue or applying glue to it with a brush, suitable guides being arranged relative to the piece to be glued for insuring the application of the pad along the central portion of the edge of the piece to be glued.

For relieving the operator of unnecessary weight in the operating mechanism a coiled spring 48 is arranged around the shaft 15 I and can be adjusted relative to its resiliency so as to make the weight of the fingers 23 with the piece to be glued nearly balance the weight of the gluing-pad and its supportingarms. It will be evident that the same result can be produced by extending an arm rearward from the shaft 14 and securing a counterbalancing-weight thereon.

As a means for dividing the labor of the operator between the hands and feet, although not essential for the operation of the mechanism thus far described, but aiding slightly in the speed at which the mechanism can be operated, a foot-lever 49 is secured to the shaft 50, said shaft being mounted for oscillation in the hangers 51, which are suspended be shaft 50 is a crank-arm 52, and connected to its free end is a rod 53, which extends upward and engages with crank-arm 54, which is secured upon the outer end of the shaft 14. This rod is not connected with the crank-arm 54, but engages its free end by entering a slot in its lower side, whereby the lid 6 can be turned back upon its hinges without any disarrangement of said connection. The upper end of the rod is provided with a curve 53 and a keeper 56 for the accurate return of the upper end of the rod to the slot in the raising and closing of said lid. A spring 57 is arranged around the shaft 50 for counterbalancing the weight of the treadle and normally holding the upper end of the rod 53 at the lowest limit of its movement. A stop 58 is arranged under the crank-arm 52 for limiting its downward movement, so that the upper end of the rod 53 and crank-arm 54 will remain in engagement and ready for use when the mechanism upon thelid 6 isin its normal position and not in use.

When using the foot-lever, the use of the fingers 23 is not essential. The shaft 15, with gear-segments 19 and fingers 23, can be removed from the machine or left in its position at the option of the operator. If removed, the operator by pressing upon the treadle with his foot raises the free end of the crank-arm 54, oscillates the shaft 14 to the right, raises the submerged end of the arms 128 with the glue-applying pad, and at the same time with one hand places the piece to be glued against the rests 40 and slides it down until it is met by the rising glue-pad and the glue applied. Then upon removing his foot and the piece glued the pad will fall back into the glue-kettle and will be prepared for applying glue to another piece. The spring 48 should in thiscase be transferred to the shaft 14. If the two shafts are used, it is immaterial upon which shaft it is placed if coiled in the proper direction. If the footleveris not used,only the mechanism shown in Figs. 1 and 4, the operation of applying glue is substantially the same as just described, the

'operator taking the piece 43 in one hand,

places it against the rests 40 and upon the ends of the fingers 23, presses down slightly, when through the action of the oscillation of the shaft 15 by the downward movement ofsaid fingers the shaft 4 is oscillated, the pad brought up from the glue in the kettle until it meets the piece to be glued, and glue is applied, as before described.

As more or less dirt and dust will be upon the pieces to be glued, for avoiding its falling unnecessarily into the glue the aperture 6 is provided with curved guards e and f for carrying the dirt away from said aperture. They may be of similar form, excepting that the guardf is made in sectional lengths, and can be cast integral with the lid, while the guard 6 may be formed of sheet metal slotted for screws (1 and made adjustable in position for adapting the width between the two guards to difierent thickness of material to be glued. The guards are shown only in Figs. 1 and 3.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a gluing-machine, a tool for applying melted glue to the edge of the piece to be glued to a companion piece, formed of a strip of rubber, or other soft and felt-like material, as 31, of the length and approximately onehalf the thickness of the edge of the piece to be glued, clamped between the doubled sheetmetal strip 32 and said latter strip adapted to be secured between the fingers 29 by setscrews 30, substantially as described.

2. A device for applying glue along the central portion only of the edge of a piece of wood, or other material to be glued to a companion piece, consisting of a narrow tool formed the full length of the piece to be glued and of a slightly compressible material adapted to take up glue and apply the same to the piece to be glued, a receptacle for holding a suitable supply of melted glue, suitable guide-rests for guiding the piece to be glued toward said glue-applying tool, a pair of arms mounted for oscillation upon a horizontally-arranged shaft, said arms having upon their outer ends said glue-applying tool, a second pair of arms arranged for oscillation and to receive and support the edge of the piece to be glued, suitable mechanism connecting said two pairs of arms for oscillating their outer ends in opposite directions and delivering glue from the tool carried by the first pair to the central longitudinal portion of the edge of said piece to be glued and supported upon the second pair of said arms, substantially as described.

3. A device for applying melted glue longitudinally along the central portion of the edge of a piece of wood, or other material to be glued to a companion piece, consisting of a hot-Water receptacle, a g1 tie-kettle suitably supported therein, a lid to said hot-water receptacle, an aperture arranged in said lid vertically over said glue-kettle, adjustable guide-rests arranged alongside of said aperture, a shaft mounted for oscillation upon said lid, longitudinally thereof and parallel with said aperture, arms mounted for oscillation with said shaft, curved and angular arms adjustably secured to the first-named arms and passing through said aperture into the glue-kettle aforesaid, fingers upon the ends of said last-named arms Within said kettle, a glue-applying pad arranged longitudinally with said aperture and detachably secured between said fingers, mechanism arranged for oscillating the aforesaid shaft and raising said glue-applying pad as the piece to be glued is slid downward against said guiderests, and to thereby apply glue along the longitudinal central portion only of the surface of the edge of the piece to be glued, substantially as described.

4. A device for applying melted glue lon= gitudiually along the central portion of the edge of a piece of wood, or other material to be glued to a companion piece, consisting of a hot-water receptacle, a glue-kettle suitably supported therein, a lid to said hot-water receptacle, an aperture arranged in said lid vertically over said glue-kettle, adjustable guiderests arranged alongside of said aperture, the shaft 15 mounted for oscillation upon said lid longitudinally thereof and parallel with the aforesaid aperture, gear-segments 19 secured on said shaft having the extension of the segment 19 ending in the boss 44, fingers 23 secured to said extension and Within said boss, the shaft 14 mounted for oscillation parallel with the shaft 15, gear-segments 18 secured upon the latter shaft and in engagement with gear-segments 19, arms 25 secured upon the segments 18, arms 28 secured to the arms 25 and adjustable thereon and having the fingers 29 and set-screws 30, a suitable width of glue-applying pad reinovably secured between the fingers 29, counterbalancing means for overcoming the excess of weight of the glue-applying arms and pad over the Weight of the segment extension, the boss 44 and fingers 23, said parts being arranged for receiving the piece to be glued upon the ends of the .fingers 23 and upon their depression to raise the glue-applying pad and apply the same longitudinally along the central portion only of the surface of the edge of said piece to be glued, substantially as set forth.

5. In a mechanism for applying glue lon-' gitudinally along the central portion of the edge of a piece of wood, or other material to be glued to a companion piece, the combination with the gear-segment 19, of an extension thereof having the boss 44 arranged upon said extension, the finger 23 secured to said extension and within said boss, a device for adjusting the position vertically of the supporting end of said finger, consisting of a cylindrical nut 45 revolubly mounted in the boss 44, and being provided with a screw-threaded bore 46, eccentrically arranged in said nut, a screw for entering said bore and securing the finger 23 in said cylindrical nut, and a set-screw 47 for securing said nut in the de sired position in said boss, substantially as described.

6. A device for applying glue longitudinally along the central portion of the edge of a piece of wood, or other material to be glued to a companion piece, consisting of a hot-water receptacle, a glue-kettle suitably supported therein, a lid to said hot-water receptacle, an aperture arranged in said lid vertically over said glue-kettle, adjustable guide-rests secured alongside of said aperture against which the piece to which glue is to be applied is to be guided vertically,the shaft 14 mounted for oscillation upon said lid longitudinally thereof and parallel with the aforesaid aperture, arms mounted for oscillation with said shaft, curved and angular arms secured to and ex- IIO end of the foot-lever will raise said glue-ap plying pad as the operator places the piece to be glued against the aforesaid guide-rests and moves it downward for meeting the rising glue-pad and receiving the glue therefrom upon a narrow central strip of the surface of the edge of the piece to be glued, substantially as set forth.

JOSEPH A. HRUBEGKY.

Witnesses:

F. J. HRUBEOKY, HENRIETTE HRUBECKY. 

